Hotend: Heater decoupled message, after finishing a print + setting new temp. (Wanhao i3, RAMPS 1.4
I recently changed the electronics of my Wanhao i3 from the Melzi to a cheap Ramps 1.4 (with separate mosfet for bed). Anything outside the control box was left as before.
I've created a new firmware based on the repetier configurator, using a Wanhao config file as base.
I've been printing several items now - all came out quite well so far. However, I've always printed them one at a time with significant delays in-between.
(i.e. print item, let machine cool down, print next item - the electronics is currently lying spread around my table and I want to make sure it doesn't overheat.)
Now I've tried to print two items in succession - every time I get that decoupling error. When I wait, I can print just fine.
Note: when I say "in succession", there are several seconds in between - enough to let the hotend cool down a bit, so I have to reheat it (sliced with Cura, I think it automatically sets the temps to zero after printing).
Is it possible the firmware doesn't realize I've set a new temperature?
Or is there perhaps indeed some overheating going on and I just don't realize it?
I don't think the extruder hardware is at fault, I didn't change anything there and it worked before and seems to work now.
(I suppose there are other threads like this? I didn't find anything useful in my search, maybe I was looking wrong :-/)